Hammock



FIG. 1 is a perspective view of the hammock.

FIG. 2 is a top view thereof;

FIG. 3 is a right-hand side view thereof;

FIG. 4 is a left-hand side view thereof;

FIG. 5 is a bottom view thereof;

FIG. 6 is a rear end view thereof;

FIG. 7 is a front end view of the hammock; and,

FIG. 8 is a perspective view of the hammock as attached to a supporting frame.

The broken lines are for environmental purposes only and form no part of the claimed design. 

The ornamental design for a hammock, as shown and described. 